* {
    padding: 0;
    margin: 0;
    list-style: none;
}

body {
    height: 100vh;
    display: flex;
}
nav {
    height: 100%;
    display: none;
    transition: all 0.8s ease;
}
.nav {
    width: 150px;
    height: 100%;
    font-size: 14px;
    color: #fff;
    background-color: pink;
}

.container {
    height: 100%;
    flex: 1;
}

header {
    width: 100%;
    height: 30%;
    background-color: skyblue;
    position: relative;
}
header>button{
    position: absolute;
    top: 10px;
    left: 10px;
}
header .title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
}
header .title>h2{
    letter-spacing: 3px;
    color: #fff;
}
header .title>p{
    font-size: 14px;
    color: #fff;
}
header .title>button {
    padding: 10px 20px;
}

main {
    width: 100%;
    height: 70%;
    display: flex;
}
main .left{
    flex:1;
    padding: 20px 0px;
}
.btn-list {
    height: 100%;
    border-right: 1px solid #333;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: end;
}
.btn-list>li{
    border: 1px solid #333;
    width: 50%;
    padding: 10px 30px;
    text-align: center;
    margin-top: 30px;
    cursor: pointer;
}
.btn-list>li:hover {
    background-color: #eee;
}

main .right{
    flex:1;
    padding: 20px 0px;
}
main .right>table {
    width: 80%;
    font-size: 15px;
    margin: 20px 10px;
    text-align: center;
}